Unless you are going Gen3 or greater don't bother. Expect to pay upwards of $5K on the low end for a complete system. That includes mounts IR laser's, IR illuminators and optics that will work with the system.

There is tranining now avail able from http://www.tnvc.com/ on to actually use NV devices correctly.

Hits on moving targets is hard enough. With NV gear everything is a little harder and heavier.

Check out the site I posted. I bought a cheapish $500 Gen 1 or 2 fixed 4 power NV scope made by ATN. Not worth the money. Clarity was bad, bloom from the rifle washed out any hope of follow up shots. If I had a suppressor at the time it would have been less of course. There is a model called the D200 or D300 that you may want to look at.